use https for external javascript
add default template
Enhancements to Contributors appearing in Feeds

* Contributors without URI will no longer be displayed in the feeds
* Added an option to filter appearing of contributors by role and group
ignore unpublished episodes in statistics

fixes #428
Merge branch 'master' into release-1-10-14
tracking export prototype
fix export status display
improve export performance
refactor: move im/exporter classes to directories

… to simplify adding other im/exporter classes
refactor: move tracking exporter to separate class
refactor: introduce import init
fix: close file after import
add download intent import
reactivate im/export of geo and UA data

It’s few enough data to be handled by the basic im/export system
display maximum upload size
refactor: rename ex/importer classes (again)
Update episode_contribution.php

Added static comparator functions for sort of episode contributors in templates.
Update contributors.php

Added static comparator functions for sort of episode contributors in templates.
Update template_extensions.php

Added ability for ordering episode contributors by their 'position' or 'comment'.
Merge branch 'pommes-master' into release-1-10-14